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Fixed MT05811 (nw)

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This commit is contained in:
Osso 2015-01-02 08:53:42 +01:00
parent 91f28d9772
commit e860f8100f
1 changed files with 14 additions and 5 deletions
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19
src/mame/drivers/maygay1b.c
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@ -105,10 +105,13 @@ WRITE_LINE_MEMBER(maygay1b_state::duart_irq_handler)
// FIRQ, related to the sample playback? // FIRQ, related to the sample playback?
READ8_MEMBER( maygay1b_state::m1_firq_trg_r ) READ8_MEMBER( maygay1b_state::m1_firq_trg_r )
{ {
int nar = m_msm6376->nar_r(); if (m_msm6376)
if (nar)
{ {
cpu0_firq(1); int nar = m_msm6376->nar_r();
if (nar)
{
cpu0_firq(1);
}
} }
return 0xff; return 0xff;
} }
@ -377,13 +380,19 @@ WRITE8_MEMBER(maygay1b_state::latch_ch2_w)
//A strange setup this, the address lines are used to move st to the right level //A strange setup this, the address lines are used to move st to the right level
READ8_MEMBER(maygay1b_state::latch_st_hi) READ8_MEMBER(maygay1b_state::latch_st_hi)
{ {
m_msm6376->st_w(1); if (m_msm6376)
{
m_msm6376->st_w(1);
}
return 0xff; return 0xff;
} }
READ8_MEMBER(maygay1b_state::latch_st_lo) READ8_MEMBER(maygay1b_state::latch_st_lo)
{ {
m_msm6376->st_w(0); if (m_msm6376)
{
m_msm6376->st_w(0);
}
return 0xff; return 0xff;
} }